Claude Opus 5.5 is now available on AWS
TL;DR
Claude Opus 5.5, Anthropic's most capable Opus model for agentic coding, knowledge work, and long-running tasks, is now available on Amazon Bedrock and Claude Platform on AWS. This post covers what's new in Opus 5.5, practical guidance, and how to start building with the model on Amazon Bedrock.
Nauti's Take
For companies already running on AWS, this is a clear advantage: Opus 5.5 plugs into existing billing, IAM and data residency without a separate Anthropic contract. The open question is how quickly new features and rate limits reach Bedrock, since cloud versions often lag the direct API.
Teams with strict compliance needs benefit most, while anyone relying on the newest capabilities should check feature parity first.
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